Method and apparatus for transmitting uplink control information in wireless communication systems

Abstract

The disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. In addition, the disclosure relates to operations of a UE and base station in a wireless communication system. Specifically, the disclosure relates to a method for transmitting an UL control signal by a UE and an apparatus capable of performing the same. The disclosure provides a subband-based transmission method in a wireless communication system.

What is claimed is: 
     
         1 . A method performed by a user equipment (UE) in a communication system, the method comprising:
 receiving, from a base station, a configuration for one or more sub-bands;   receiving, from the base station, downlink control information (DCI) scheduling a physical uplink shared channel (PUSCH);   identifying, among the one or more sub-bands, a first sub-band for uplink control information (UCI);   multiplexing the UCI on the PUSCH based on the first sub-band for the UCI; and   transmitting, to the base station, the PUSCH including the UCI.   
     
     
         2 . The method of  claim 1 , wherein the DCI includes a field indicating the first sub-band for the UCI among the one or more sub-bands, and
 wherein the first sub-band for the UCI is identified based on the field included in the DCI.   
     
     
         3 . The method of  claim 1 , wherein the first sub-band for the UCI is identified as a second sub-band selected by the UE, and
 wherein the PUSCH includes information indicating the second sub-band selected by the UE.   
     
     
         4 . The method of  claim 3 , wherein the information indicating the second sub-band selected by the UE is multiplexed on the PUSCH over an entire bandwidth of the PUSCH. 
     
     
         5 . The method of  claim 1 , wherein the configuration for one or more sub-bands includes a beta-offset value for each sub-band of the one or more sub-bands, and
 wherein a number of resource elements (REs) for the UCI is identified based on a beta-offset value for the first sub-band for the UCI.   
     
     
         6 . A method performed by a base station in a communication system, the method comprising:
 transmitting, to a user equipment (UE), a configuration for one or more sub-bands;   transmitting, to the UE, downlink control information (DCI) scheduling a physical uplink shared channel (PUSCH); and   receiving, from the UE, the PUSCH including an uplink control information (UCI),   wherein the UCI is multiplexed in a first sub-band for the UCI among the one or more sub-bands.   
     
     
         7 . The method of  claim 6 , wherein the DCI includes a field indicating the first sub-band for the UCI among the one or more sub-bands, and
 wherein the first sub-band for the UCI is identified based on the field included in the DCI.   
     
     
         8 . The method of  claim 6 , wherein the first sub-band for the UCI is identified as a second sub-band selected by the UE, and
 wherein the PUSCH includes information indicating the second sub-band selected by the UE.   
     
     
         9 . The method of  claim 8 , wherein the information indicating the second sub-band selected by the UE is multiplexed on the PUSCH over an entire bandwidth of the PUSCH. 
     
     
         10 . The method of  claim 6 , wherein the configuration for one or more sub-bands includes a beta-offset value for each sub-band, and
 wherein a number of resource elements (REs) for the UCI is identified based on a beta-offset value for the first sub-band for the UCI.   
     
     
         11 . A user equipment (UE) in a communication system, the UE comprising:
 a transceiver; and   at least one processor operably coupled to the transceiver, the at least one processor configured to:
 receive, from a base station, a configuration for one or more sub-bands, 
 receive, from the base station, downlink control information (DCI) scheduling a physical uplink shared channel (PUSCH), 
 identify, among the one or more sub-bands, a first sub-band for uplink control information (UCI), 
   multiplex the UCI on the PUSCH based on the first sub-band for the UCI, and transmit, to the base station, the PUSCH including the UCI.   
     
     
         12 . The UE of  claim 11 , wherein the DCI includes a field indicating the first sub-band for the UCI among the one or more sub-bands, and
 wherein the first sub-band for the UCI is identified based on the field included in the DCI.   
     
     
         13 . The UE of  claim 11 , wherein the first sub-band for the UCI is identified as a second sub-band selected by the UE, and
 wherein the PUSCH includes information indicating the second sub-band selected by the UE.   
     
     
         14 . The UE of  claim 13 , wherein the information indicating the second sub-band selected by the UE is multiplexed on the PUSCH over an entire bandwidth of the PUSCH. 
     
     
         15 . The UE of  claim 11 , wherein the configuration for one or more sub-bands includes a beta-offset value for each sub-band, of the one or more sub-bands and
 wherein a number of resource elements (REs) for the UCI is identified based on a beta-offset value for the first sub-band for the UCI.   
     
     
         16 . A base station in a communication system, the base station comprising:
 a transceiver; and   at least one processor operably coupled to the transceiver, the at least one processor configured to:
 transmit, to a user equipment (UE), a configuration for one or more sub-bands, 
 transmit, to the UE, downlink control information (DCI) scheduling a physical uplink shared channel (PUSCH), and 
 receive, from the UE, the PUSCH including an uplink control information (UCI), 
   wherein the UCI is multiplexed in a first sub-band for the UCI among the one or more sub-bands.   
     
     
         17 . The base station of  claim 16 , wherein the DCI includes a field indicating the first sub-band for the UCI among the one or more sub-bands, and
 wherein the first sub-band for the UCI is identified based on the field included in the DCI.   
     
     
         18 . The base station of  claim 16 , wherein the first sub-band for the UCI is identified as a second sub-band selected by the UE, and
 wherein the PUSCH includes information indicating the second sub-band selected by the UE.   
     
     
         19 . The base station of  claim 18 , wherein the information indicating the second sub-band selected by the UE is multiplexed on the PUSCH over an entire bandwidth of the PUSCH. 
     
     
         20 . The base station of  claim 16 , wherein the configuration for one or more sub-bands includes a beta-offset value for each sub-band, and
 wherein a number of resource elements (REs) for the UCI is identified based on a beta-offset value for the first sub-band for the UCI.